Yes I had the same thought; that this sounds specific to ffmpeg
libraries/apps. Like VLC.
Although Chrome uses ffmpeg it contains its own private (older) version.
So that's why Chrome/Chromium would be unaffected.
Totem wouldn't usually be affected, except that having
gstreamer1.0-libav installed makes GStreamer apps like Totem use the
affected/broken ffmpeg version.
Maybe try forcefully reinstalling suspected packages. For example:
sudo apt install --reinstall libavutil-ffmpeg54/xenial libavresample-
ffmpeg2/xenial libavformat-ffmpeg56/xenial libavfilter-ffmpeg5/xenial
libavdevice-ffmpeg56/xenial libavcodec-ffmpeg-extra56/xenial libavcodec-
extra/xenial
** Also affects: ffmpeg (Ubuntu)
Importance: Undecided
Status: New
** Changed in: ffmpeg (Ubuntu)
Status: New => Incomplete
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Packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/1755144
Title:
No audio on vlc or videos sound or video files
Status in ffmpeg package in Ubuntu:
Incomplete
Status in pulseaudio package in Ubuntu:
Incomplete
Bug description:
Up until a few weeks ago there was no problem with playing sound from mp3
files. I have a pair of usb speakers. Audio plays Ok on them for video clips
using Chrome (e.g. from BBC website). Using vlc 2.2.2 (from Ubuntu repos),
neither a CD nor DVD (video is Ok) nor mp3 file plays audio. mp3 files play Ok
using Rhythmbox. I've also tried vlc 3.0 with no success.
Interestingly, the standard Videos app (Totem?) also doesn't play sound on
these speakers either of an mp4 file (downloaded from YouTube, though it plays
Ok on YouTube website using Chrome) or a DVD. Clemenetine plays mp3 files Ok. I
first reported this as bug 1752267 as I thought that the problem was with vlc.
On that bug, it was suggested that the problem is with Pulseaudio.
Just now, I've tried to play sound through my monitor's built in speakers
connected by hdmi (though the monitor displays Ok) with no success even though
the built-in speakers play sound using pavucontrol when testing is invoked.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: pulseaudio 1:8.0-0ubuntu3.8
ProcVersionSignature: Ubuntu 4.4.0-116.140-generic 4.4.98
Uname: Linux 4.4.0-116-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: john 2410 F.... pulseaudio
/dev/snd/controlC0: john 2410 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Mar 12 11:06:46 2018
InstallationDate: Installed on 2016-12-08 (458 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/04/2015
dmi.bios.vendor: Intel Corp.
dmi.bios.version: PYBSWCEL.86A.0043.2015.0904.1904
dmi.board.name: NUC5CPYB
dmi.board.vendor: Intel Corporation
dmi.board.version: H61145-404
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnIntelCorp.:bvrPYBSWCEL.86A.0043.2015.0904.1904:bd09/04/2015:svn:pn:pvr:rvnIntelCorporation:rnNUC5CPYB:rvrH61145-404:cvn:ct3:cvr:
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